雅思词组1:at all times总是，始终，随时

Locking doors at all times...men didn'tthink it was quite as important as women, but both gave it a high safetyrating.

在随时锁门这个问题上，男性不像女性那般重视，但二者都给予其高安全等级。

近义词组：all the time

雅思词组2:at any time在任何时候

You're supposed to ask for a home visitbefore 10:30 in the morning, but obviously, if it's an emergency, you can phoneat any time, night or day.

你应该在上午10:30前要求医生出诊，但如果情况紧急，毫无疑问，你可以在白天或晚上的任何时候致电。

近义词组：at all hours

雅思词组3:at least 至少

At least, we've done the oralpresentation-I thought that was good, the way I got my feedback really quickly.

至少，我们已做了口头演讲，我认为那不错，能很快得到反馈。

She may receive little education, but atleast she is reliable.

她可能没接受过什么教育，但至少她很可靠。

The interesting side of sports physiology,at least in my view, is the side that looks at the micro level, looking atcellular change. The researchers are doing cellular research, looking atchanges in body cells when the body is under stress.

至少在我看来，运动生理学有趣的一面是其从微观上观察细胞变化。研究人员进行细胞研究，观察处于压力之下的人体细胞所发生的变化。

近义词组：no less than

雅思词组4:at one's service 愿为某人服务

I'm glad to be at your service, Sir.

先生，我很乐意为您效劳。

雅思词组5:at risk在危险中

We know from modern farming that if theIevel of breeding stock falls below about three hundred females, the future ofthe species locally is at risk.

根据现代农业的相关知识我们了解到，如果某一物种中雌性的数量低于300，那么该物种在此地的未来堪忧。

近义词组：at stake, in danger

雅思词组6:at some stage 在某些时候;在某阶段

I want to ask where the staff room is incase I need to find a teacher at some stage

我想问一下教师休息室在哪里，以防我什么时候需要找老师。

雅思词组7:at the end of在…的尽头;…结束之时

You've chosen to visit the rainforest inMarch, which is just at the end of the wet season, so you'll soon notice howwell the waterfalls are running and also how damp the ground is.

你们选择三月来游览雨林，这正是雨季结束之际，那么不久你们就会发现瀑布有多么壮观以及地面有多么湿润。

You will notice at the end of each corridorthat there is another door but these are fire doors and are kept locked fromthe outside.

你会发现每条走廊的尽头都还有一扇门，但那是消防门，一直都是从外面锁上的。

雅思词组8:at the expense of以…为代价

The rapid urbanization in this country isoccurring at the expense of both rural lifestyles and precious culturalheritage.

该国快速的城市化是以牺牲乡村生活方式和宝贵的文化遗产为代价的。

近义词组：at the cost of

雅思词组9:at the moment当下，目前

At the moment, your task is to get over thedifficulties and start afresh again.

目前你的任务是克服困难重新开始。

近义词组：at present

雅思词组10:at the outset开端，开始

Your tutors will tell you at the outset howto set out the chapters they require but you will need to ask them how theywould like you to organise the bibliography because it varies depending on yoursubject area.

你们的导师会在开始时告诉你们如何安排他们要求的章节，但是你们需要询问他们希望你们如何组织参考书目，因为这会因学科领域的不同而不同。

近义词组：at the beginning